This image released by the Monroe County Board of County Commissioners shows debris along the Overseas Highway in the Florida Keys, Fla., Monday, Sept. 11, 2017. Recovery along the island chain continues after Hurricane Irma made landfall on Sunday as a Category 4 hurricane then. (Sammy Clark/Monroe County Board of County Commission via AP)

Donald Garner, 57, surveys the wreckage of another houseboat from the roof of his in Lower Matecumbe Key, Fla., Tuesday Sept. 12, 2017. Garner had tied his boat, which he lives on, to the mangroves to help gird it against Hurricane Irma's wrath. The boat survived sustaining minor damage, but some others in his small community didn't fare as well. (AP Photo)